<Trace> AggregatingTransform: Aggregating
<Trace> Aggregator: Aggregation method: without_key
<Debug> AggregatingTransform: Aggregated. 1 to 1 rows (from 405.80 B) in 0.023395693 sec. (42.743 rows/sec., 16.91 KiB/sec.)
<Trace> Aggregator: Merging aggregated data
<Information> executeQuery: Read 16619 rows, 4.76 MiB in 0.040503444 sec., 410310 rows/sec., 117.51 MiB/sec.
<Debug> MemoryTracker: Peak memory usage (for query): 16.12 MiB